JS关于获取兄弟节点的问题

Question

js

Answer 1

 <div id="m1" onMouseOver="mcancelclosetime('m1')" onMouseOut="mclosetime()"> 如果是使用nextSibling或者previousSibling属性，注意非IE浏览器下空白节点也算一个，自己注意判断nodeType

Answer 2

<div id="m1" onMouseOver="mcancelclosetime('m1')" onMouseOut="mclosetime()"> 
var child_to_father = document.getElementById(child_id);
    var oa = child_to_father.parentNode.getElementsByTagName('a');
    oa[0].style.background = color.yellow;
    oa[0].style.color = color.black;